更新：发表您的评论后，当前无法更改默认注册表，请参见此问题有关更多信息。

UPDATE: Following your comment, it is not currently possible to change the default registry, see this issue for more info.

您应该能够做到这一点，将主机和端口替换为自己的主机：

You should be able to do this, substituting the host and port to your own:

docker pull localhost:5000/registry-demo

如果服务器是远程服务器/具有身份验证，您可能需要使用以下命令登录服务器：

If the server is remote/has auth you may need to log into the server with:

docker login https://<YOUR-DOMAIN>:8080

然后运行：

docker pull <YOUR-DOMAIN>:8080/test-image